Communication Device

1. A communication device comprising: a first type of interface configured to perform a communication with a terminal device according to an NFC (abbreviation of Near Field Communication) scheme complying with an NFC standard; a second type of interface configured to perform a communication with the terminal device according to a scheme different from the NFC scheme; and a controller configured to: receive first information from the terminal device by using a first communication link in a case where the first communication link is established via the first type of interface between the communication device and the terminal device, the first communication link being a communication link in which a data communication is to be performed by the communication device operating in a first mode of the NFC standard that is different from a P2P (abbreviation of Peer to Peer) mode of the NFC standard and by the terminal device operating in a second mode of the NFC standard that is different from the P2P mode and the first mode; in a case where the first information is received from the terminal device, execute a first determining process related to whether a communication via the second type of interface between the communication device and the terminal device is performable; establish a second communication link via the first type of interface between the communication device and the terminal device in the case where the first information is received from the terminal device, the second communication link being a communication link in which a data communication is to be performed by the communication device operating in the P2P mode and by the terminal device operating in the P2P mode; and perform a two-way communication of second information with the terminal device by using the second communication link, in a case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is performable, the second information being information for performing a communication via the second type of interface between the communication device and the terminal device, wherein the controller is configured not to perform the two-way communication of the second information with the terminal device, in a case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is not performable.

2. The communication device as in claim 1 , wherein the controller is configured to establish the second communication link in the case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is performable.

3. The communication device as in claim 2 , wherein the controller is configured not to establish the second communication link in the case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is not performable.

4. The communication device as in claim 1 , wherein the controller is further configured to store specific identification information for identifying the terminal device in a memory in a case where an instruction for registering the specific identification information is given, the first information includes the specific identification information, and the first determining process includes: determining that the communication via the second type of interface between the communication device and the terminal device is performable, in a case where the first information including the specific identification information is received from the terminal device in a state where the specific identification information is stored in the memory; and determining that the communication via the second type of interface between the communication device and the terminal device is not performable, in a case where the first information including the specific identification information is received from the terminal device in a state where the specific identification information is not stored in the memory.

5. The communication device as in claim 4 , wherein the controller is configured to further execute a second determining process related to whether a communication via the second type of interface between the communication device and the terminal device is performable, in a case where the first information is received from the terminal device, the first information includes a performing request for causing the communication device to perform a specific function, the second determining process includes: determining that the communication via the second type of interface between the communication device and the terminal device is performable, in a case where the communication device is in a state being capable of performing the specific function; and determining that the communication via the second type of interface between the communication device and the terminal device is not performable, in a case where the communication device is in a state being incapable of performing the specific function, the controller is configured to perform the two-way communication of the second information with the terminal device by using the second communication link, in a case where it is determined in both of the first determining process and the second determining process that the communication via the second type of interface between the communication device and the terminal device is performable, and the controller is configured not to perform the two-way communication of the second information with the terminal device, in a case where it is determined in at least one of the first determining process and the second determining process that the communication via the second type of interface between the communication device and the terminal device is not performable.

6. The communication device as in claim 1 , wherein the first information includes a performing request for causing the communication device to perform a specific function, the first determining process includes: determining that the communication via the second type of interface between the communication device and the terminal device is performable, in a case where the communication device is in a state being capable of performing the specific function; and determining that the communication via the second type of interface between the communication device and the terminal device is not performable, in a case where the communication device is in a state being incapable of performing the specific function.

7. The communication device as in claim 1 , wherein the controller is configured to establish the second communication link before executing the first determining process, the controller is configured to perform the two-way communication of the second information with the terminal device by using the established second communication link, in the case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is performable; and the controller is further configured to send third information different from the second information to the terminal device by using the established second communication link, in the case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is not performable, the third information indicating that the communication via the second type of interface between the communication device and the terminal device is not performable.

8. The communication device as in claim 7 , wherein the controller is further configured to store specific identification information for identifying the terminal device in a memory, in a case where an instruction for registering the specific identification information is given, the first determining process includes: determining that the communication via the second type of interface between the communication device and the terminal device is performable, in a case where the specific identification information is received by using the second communication link in a state where the specific identification information is stored in the memory; and determining that the communication via the second type of interface between the communication device and the terminal device is not performable, in a case where the specific identification information is received by using the second communication link in a state where the specific identification information is not stored in the memory.

9. The communication device as in claim 8 , wherein the controller is further configured to execute a second determining process related to whether the communication via the second type of interface between the communication device and the terminal device is performable, the first information includes a performing request for causing the communication device to perform a specific function, the second determining process includes: determining that the communication via the second type of interface between the communication device and the terminal device is performable, in a case where the communication device is in a state being capable of performing the specific function; and determining that the communication via the second type of interface between the communication device and the terminal device is not performable, in a case where the communication device is in a state being incapable of performing the specific function, the controller is configured to establish the second communication link, in a case where it is determined in the second determining process that the communication via the second type of interface between the communication device and the terminal device is performable, and the controller is configured not to establish the second communication link, in a case where it is determined in the second determining process that the communication via the second type of interface between the communication device and the terminal device is not performable.

10. The communication device as in claim 1 , wherein the first mode is a CE (abbreviation of Card Emulation) mode of the NFC standard, and the second mode is a Writer mode of the NFC standard.

11. The communication device as in claim 1 , wherein the first mode is a Reader mode of the NFC standard, and the second mode is a CE (abbreviation of Card Emulation) mode of the NFC standard.

12. The communication device as in claim 1 , wherein a communication speed of the communication via the second type of interface is faster than a communication speed of the communication via the first type of interface.

13. The communication device as in claim 1 , wherein the controller is further configured to perform the communication via the second type of interface between the communication device and the terminal device by using the second information after performing the two-way communication of the second information with the terminal device.

14. A non-transitory computer-readable medium storing computer-executable instructions for a communication device, wherein the computer-executable instructions, when executed by a controller of the communication device, cause the communication device to: receive first information from a terminal device by using a first communication link in a case where the first communication link is established via a first type of interface of the communication device between the communication device and the terminal device, the first type of interface configured to perform communications according to a Near Field Communication (NFC) scheme complying with an NFC standard, the first communication link being a communication link in which a data communication is to be performed by the communication device operating in a first mode of the NFC standard that is different from a P2P (abbreviation of Peer to Peer) mode of the NFC standard and by the terminal device operating in a second mode of the NFC standard that is different from the P2P mode and the first mode; in a case where the first information is received from the terminal device, execute a first determining process related to whether a communication via a second type of interface of the communication device between the communication device and the terminal device is performable, the second type of interface configured to perform communications with the terminal device according to a scheme different from the NFC scheme; establish a second communication link via the first type of interface between the communication device and the terminal device in the case where the first information is received from the terminal device, the second communication link being a communication link in which a data communication is to be performed by the communication device operating in the P2P mode and by the terminal device operating in the P2P mode; and perform a two-way communication of second information with the terminal device by using the second communication link, in a case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is performable, the second information being information for performing a communication via the second type of interface between the communication device and the terminal device, wherein the computer-executable instructions cause the communication device not to perform the two-way communication of the second information with the terminal device, in a case where it is determined in the first determining process that the communication via the second type of interface between the communication device and the terminal device is not performable.

15. A non-transitory computer-readable medium storing computer-executable instructions for a terminal device, wherein the computer-executable instructions, when executed by a controller of the terminal device, cause the terminal device to: send first information to a communication device by using a first communication link in a case where the first communication link is established via a first type of interface of the terminal device between the communication device and the terminal device, the first type of interface configured to perform communications with the communication device according to a Near Field Communication (NFC) scheme complying with an NFC standard, the first communication link being a communication link in which a data communication is to be performed by the communication device operating in a first mode of the NFC standard that is different from a Peer-to-Peer (P2P) mode of the NFC standard and by the terminal device operating in a second mode of the NFC standard that is different from the P2P mode and the first mode; establish a second communication link via the first type of interface between the terminal device and the communication device in a case where the first information is sent to the communication device, the second communication link being a communication link in which a data communication is to be performed by the communication device operating in the P2P mode and by the terminal device operating in the P2P mode; and perform a two-way communication of second information with the communication device, in a case where the communication device determines that the communication via a second type of interface of the terminal device between the terminal device and the communication device is performable, as a result of the first information being sent to the communication device, the second information being information for performing a communication via the second type of interface between the communication device and the terminal device, the second type of interface configured to perform communications with the communication device according to a scheme different from the NFC scheme, wherein the computer-executable instructions cause the terminal device not to perform the two-way communication of the second information with the communication device, in a case where the communication device determines that the communication via the second type of interface between the terminal device and the communication device is not performable, as a result of the first information being sent to the communication device.